a=[]

# 构建10*10的二维数组，并全部填充0
for i in range(10):
    a.append([])
    for j in range(10):
        a[i].append(0)

# 输出
for i in range(len(a)):
    for j in range(len(a[i])):
        print(a[i][j],end=' ')
    print()